From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7E140C77B75 for ; Mon, 22 May 2023 13:11:50 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1q15K0-0005Zk-Lz; Mon, 22 May 2023 09:11:32 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1q15Jy-0005TZ-6m for qemu-devel@nongnu.org; Mon, 22 May 2023 09:11:30 -0400 Received: from mail-oa1-x33.google.com ([2001:4860:4864:20::33]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1q15Jw-0007Ye-EE for qemu-devel@nongnu.org; Mon, 22 May 2023 09:11:29 -0400 Received: by mail-oa1-x33.google.com with SMTP id 586e51a60fabf-19a27f1cd6dso2341453fac.0 for ; Mon, 22 May 2023 06:11:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; t=1684761086; x=1687353086; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=oGkMtc7Eok3L3pv0QICT7EOJENDrwnzSr24aOofvCMo=; b=PTSuFX0moRZ4BWHL4h5v2a/RAlqPoYISWvtulRmaJyodovhyD57kuHtwWDSa0lCV7N URG7aznibjEjZoLriS2gZuDMejbqTYOWt/8Gn+/M/ga4zR5Kzpa1HS8lRpDqXp6p1cYZ ilLurqn42aiK7YHpXGwkIbxKiH1HSFfeT3i/bMI4Mw/lJoot1MnZcO31VPJUfJlL3i3A REjrMAtxuBNoOOuL/DngsUAKkiYMjq4HU4W/mgKc/xyIe6B7e+eadhs8n+hStsYy+N06 XAp9WabWixNbqpS9miSS18twGL1za+NVOvuYYggosMEb31EGtDY5ZX3jnVSyv5kOElAk ECQQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684761086; x=1687353086; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=oGkMtc7Eok3L3pv0QICT7EOJENDrwnzSr24aOofvCMo=; b=HXKiXl/oKYRN7cVbOZghpnie7F3lhJqrMX1oy8C+AErrz+jCr8+jUeEwRAitz5AaWU 9I9NTiFrGC+82TiFtMSLQRtAdP6trYmm/ZXw14A6CeJaDf0mVkIL/JU0zGTj/UbRi0Tz 3hu17NkcZinPgE41L6F/iqCcBnAvefnpzCh0T0pccRu4s1nz69mnDJCsbPSJ8X00zifG U55El3RCuXUP9lSP27krpvnSfNCszbnUxLxTMFWNN7eGSMNpvf7bAzXu3WqQQ6bvAOHo 5jZctomT9WMtDtyJLjtez1MkmB2wpiVuAvu+ApRIVDVdDGl13e0/EiXX6Eq8BwfhQhZL dMZg== X-Gm-Message-State: AC+VfDxV6YnwHXBA7IfzknBDMg3RoZlMbpLXV3WvSJlzf1Ait1JyARXl b51zUKwmQoMAhhoODtlJ2q3TZQVAxwJ8R20qUWGE/H85iRgPwy6ayNr/tm4kQh9JzZx4lxqU8Bx mnfHmKXoWF+5hnz5oYH7WYWutjzTggTAs81ty3p987p0Ev5TRROsbF5jNXRjxa87rxFDBPQyWTq Jb X-Google-Smtp-Source: ACHHUZ5yWMvvDZ+snZQNcwQ1dCO7Uao8H30yMBtGIXCgmG42V4WwX5vGB2g2V+pUJoaCfgT5LrCwfw== X-Received: by 2002:a05:6870:168f:b0:195:e6e9:b74a with SMTP id j15-20020a056870168f00b00195e6e9b74amr7469791oae.29.1684761086368; Mon, 22 May 2023 06:11:26 -0700 (PDT) Received: from sw05.internal.sifive.com ([64.62.193.194]) by smtp.gmail.com with ESMTPSA id c3-20020a9d6c83000000b006af731d100fsm1369182otr.75.2023.05.22.06.11.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 May 2023 06:11:26 -0700 (PDT) From: Tommy Wu To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Cc: frank.chang@sifive.com, palmer@dabbelt.com, alistair.francis@wdc.com, bin.meng@windriver.com, liweiwei@iscas.ac.cn, dbarboza@ventanamicro.com, zhiwei_liu@linux.alibaba.com, richard.henderson@linaro.org, Tommy Wu Subject: [PATCH v3 0/4] target/riscv: Add Smrnmi support. Date: Mon, 22 May 2023 06:11:19 -0700 Message-Id: <20230522131123.3498539-1-tommy.wu@sifive.com> X-Mailer: git-send-email 2.38.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2001:4860:4864:20::33; envelope-from=tommy.wu@sifive.com; helo=mail-oa1-x33.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org This patchset added support for Smrnmi Extension in RISC-V. There are four new CSRs and one new instruction added to allow NMI to be resumable in RISC-V, which are: ============================================================= * mnscratch (0x740) * mnepc (0x741) * mncause (0x742) * mnstatus (0x744) ============================================================= * mnret: To return from RNMI interrupt/exception handler. ============================================================= RNMI also has higher priority than any other interrupts or exceptions and cannot be disabled by software. RNMI may be used to route to other devices such as Bus Error Unit or Watchdog Timer in the future. The interrupt/exception trap handler addresses of RNMI are implementation defined. Changelog: v3 * Update to the newest version of Smrnmi extension specification. v2 * split up the series into more commits for convenience of review. * add missing rnmi_irqvec and rnmi_excpvec properties to riscv_harts. Tommy Wu (4): target/riscv: Add Smrnmi cpu extension. target/riscv: Add Smrnmi CSRs. target/riscv: Handle Smrnmi interrupt and exception. target/riscv: Add Smrnmi mnret instruction. hw/riscv/riscv_hart.c | 21 +++++ include/hw/riscv/riscv_hart.h | 4 + target/riscv/cpu.c | 19 +++++ target/riscv/cpu.h | 11 +++ target/riscv/cpu_bits.h | 23 +++++ target/riscv/cpu_helper.c | 84 +++++++++++++++++-- target/riscv/csr.c | 82 ++++++++++++++++++ target/riscv/helper.h | 1 + target/riscv/insn32.decode | 3 + .../riscv/insn_trans/trans_privileged.c.inc | 12 +++ target/riscv/op_helper.c | 51 +++++++++++ 11 files changed, 306 insertions(+), 5 deletions(-) -- 2.31.1